1. The best conservatory of music in Spain should be the Royal Conservatory of Music in Madrid.
No matter which school you want to go to in the end, you need to get the school's offer in China to get a visa. First of all, you need to know whether the postgraduate course you want to apply for is taught in Spanish. If so, you need to learn Spanish in China and obtain the corresponding Spanish proficiency certificate. If you teach English, you need to take IELTS or TOEFL. Then submit your application materials according to the requirements of the school. Generally, art candidates will have an interview or a portfolio, which the school will use to judge whether your level meets the requirements.